2 Cavity Compression Mould for coffee lid

grabcad

A class project challenges us to create a mold and die using the same shoe. While other teams follow the assigned agenda, our group aims for more by testing the part. We opted for a compression mold since an injection machine is unavailable. A 0.02-thick polystyrene sheet cut to size serves as the blank part. It's held in place by a clamping ring and heated with a heat gun until soft. The two halves are then pressed together using a vertical spotting press. Next, the lids are trimmed from the plastic part. Dies will fit in the same pockets of aluminum inserts and be cut out using the press. This set of tools will remain at St. Clair College for future CAD-CAM students to learn innovation and showcase the program. Mold and Die training programs were cut a few years back due to offshoring but are now returning to Windsor, Ontario - known as the Molding Capital of the World. Updates and videos of tryouts and manufacturing processes will be shared. The project is entirely designed in NX8.0, with cutter paths generated using Mastercam X7 on a Cincinnati VMC 500 and Robodrill, along with other machines like drill press, Anilam-controlled milling machines, manual lathes, sink EDM, and Robowire EDM.